Micro Test 3

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Author:
bhansen04
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215630
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Micro Test 3
Updated:
2013-04-24 19:45:54
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Bacteria
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Test 3 Bacteria
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  1. What is the 5 kingdom system?
    Monera, Protista, Fungi, Plantae and Animalia
  2. What is the 3 kingdom system?
    Bacteria, Archea and Eukarya
  3. How does the 5 kingdom subdivide the eukaryotes?
    Animalia, fungi and plantae
  4. What is the endosymbiotic theory?
    that eukaryotic cells evolved from prokaryotic cells living inside one another
  5. What organelles are involved in the endosymbiotic theory?
    Mitochondria and chloroplasts
  6. Why would scientists think that mitochondria and chloroplasts are similar to bacteria?
    They contain their own DNA that loops around like that of bacteria, they manufacture many of their own proteins, and they both reproduce by binary fission.
  7. What is a scientific name made of?
    The first name (capitalized) is the genus of the organism, the second (not capitalized) is its species
  8. What are systematics and phylogeny the study of?
    The evolutionary history of organisms
  9. What two BIG categories can all bacteria be spilt into? What makes these two categories different?
    Eubacteria "true bacteria" have peptydoglycan and Archaea lack peptidoglycan and live in extreme conditions
  10. List the types of tests used in modern science to identify bacteria.
    Morphilogical characteristics, differential staining, biochemical tests, rapid identification, serology, phage typing, fatty acid profiles, flow cytometry and genetic testing.
  11. What are the major categories of Archea?
    Methanogens, halophiles and thermacidophiles
  12. What makes a halophile different from a methanogen?
    Halophiles require high concentrations of salt to survive and methanogens are strict anaerobes that produce methane from CO2 and H.
  13. What are some characteristics that can be used to subdivide bacteria into sections?
    Mitochondria, cyanobacteria, G-, G+, chloroplasts, thermotoga
  14. How are spirochetes different from vibroid bacteria?
    Spirochetes are spiral shaped and vibrios are slighting curved rods
  15. What is the ecological role of nodule-forming (live in plants) and non-nodule (live in soil) forming nitrogen fixers?
    Fix atmospheric nitrogen into a form usable by plants
  16. Which bacteria are listed in your notes as causing noscomial infections or infections in hospitalized individuals?
    Staph aureus, Pseudomonas aeruginosa, E. coli, Klebsiella pneumoniae, Enterobactor, Candida albicans
  17. Which bacteria causes crown-gall disease? How are these bacteria important in the genetic engineering field?
    Agrobacterium tumefaciens, its where genetic engineering began.
  18. What is an enteric? Where do you find them growing? What characteristics do they have?
    G- bacteria found in intestinal tracts, ferment glucose
  19. What bacteria can cause food poisioning?
    Salmonella, Listeria, E. coli and Campylobacter
  20. Which category of bacteria have the ability to bioluminesce?
    Dinoflagellates (red tide)
  21. What problems can anaerobic G- bacteria cause in the human mouth?
    Bad breath by excreting wastes some of which are sulfur compounds
  22. Bacteria are important in the nitrogen cycle. Are they also important in the sulfur cycle? Explain.
    they decompose and oxidize various products of fermentative degradtions or organic matter
  23. Which type of bacteria are obligate intercellular parasites of eukaryotes?
    Mycoplasma?
  24. Which type of bacteria lack cell walls?
    Mycoplasma
  25. Which two genera of G+ cocci are pathogenic?
    Streptococcus and Staphylococcus
  26. Which bacteria produce endospores?
    Bacillus, Clostridium
  27. What genus bacteria is very useful in food production?
    Bacillus
  28. What is the difference between mycoplasmas and mycobacteria?
    Mycoplasma refers to a genus of bacteria that lack cell walls and mycobacteria have a very thick, waxy cell wall
  29. What is the difference between the purple, green, and cyanobacteria?
    They produce food by photosynthesis
  30. Which category of bacteria are the source of many antibiotics?
    Streptomyces
  31. What is an extremophile and how are they different from other bacteria?
    Microorganisms with the ability to thrive in extreme environments.

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